Finding the Fourth Proportional to 55,137,203.75, 76,112,891.73 and 39,252,542.83
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Solution
The fourth proportional to 55,137,203.75, 76,112,891.73 and 39,252,542.83 is: 54,185,274.90
Step by Step Solution
- Step 1: Write the proportion equation
55,137,203.75 : 76,112,891.73 = 39,252,542.83 : x - Step 2: Convert to fraction form
55,137,203.75/76,112,891.73 = 39,252,542.83/x - Step 3: Cross multiply
55,137,203.75x = 76,112,891.73 × 39,252,542.83 - Step 4: Simplify right side
55,137,203.75x = 2,987,624,542,356,696 - Step 5: Solve for x
x = 2,987,624,542,356,696/55,137,203.75 - Step 6: Final answer
x = 54,185,274.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.